Door-stop



' (No Model.)

L. P. H AZEN DOOR STOP.

,umm

Patented Deo UNITED STATES PATENT OFFICE..

LEVI P. HAZEN, OF CINCINNATI, OHIO.

DOOR-STO P.

SPECIFICATIONv forming part of Letters Patent No. 308,768, datedDecember 2, 1884.

Application filed July 25, 1884. (No model.)

T0 all whom it may concern:

Be it known that I, LEVI l?. HAZEN, a citizen of the United States,residing at Cincinnati,vin the county of Hamilton'and State of Ohio,have invented certain new and useful Improvements in Door-Stops, ofwhich the following is a specification.

My invention relates to a door-stop; and it consists in providing ahollow wall-knob composing the stop proper with grip arms or jaws, whichengage ashouldered stud or pin on the door to hold it open, said jawsbeing released from locking engagement with the stud by apresser-trigger to close the door.

In the accompanying drawings, Figure l is an elevation of a door-stopand holding device embodying my invention, being shown in operativeposition. Fig. 2 isa central longitudinal section of the same. Fig. 8 isa detail plan viewl of the interlocking devices of the doorstop. Fig. 4is a detail perspective view of one of the jaw-arms, and Fig. 5 is anend elevation of the stop.

A represents a hollowed-out knob or block composing the body of thestop, being secured,

as customary, to the skirting-board B.

C represents the lower section of a door upon which a bumper-stud, D,issecured in a position to engage a coupling device within the knob whenthe door is wide open to hold it so. Stud l) is preferably composed of ascrew, d, and a hemispherical elastic cushion or bumper, d, the screwpassing through the bumper into the door for attachment.

E E represent a two-part box or frame set within the hollow of the knob;and F F are j atv-arms mounted upon pivots e, between the two sectionsof the boX.

a a are inwardly-projecting lugs at the rear pivotal ends of thejaw-arms, the lug a' being back of lug a, but iu direct contacttherewith.

G isa coil-spring placed between lug a on jaw-arm F and lug b,projecting upwardly from section E of the box between the jawarms. Theexpansion of the spring upon lugs c a serves to close the jaws and keepthem so until spread apart by a foot presser-trigger, c. Thepresser-trigger is composed of a headed bar, which passes downwardlythrough an opening in the knob and slots f in the twopartboX, and isprovided with an inclined notch, c', at its lower end, which ou beingdepressed engages lugs a c', compressing the spring and expanding thejaws to release them from connection with the head of the screwstud Dwhen it is desired to close the door.

H represents a pin passed through the knob and` the lug li at the rear0f section E of the two-part boX, to sustain the box firmly within theknob.

I claim- Ina door-stop` the combination, with the hollow wall-knob A, ofexpansion-jaws F F', pivotally mounted within the knob and adapted toengage a bumper-stud, D, on the door, and a pressentrigger, c, fordisengaging said jaws, substantially in the manner and for the purposespecified.

In testimony of which invention I hereunto set my hand. s

LEVI '1). HAZEN.

Vitnesses:

JOHN E. JONES, JOSEPH Lrr'rELL.

